<?xml version="1.0" encoding="UTF-8"?>
<element name="foo" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://relaxng.org/ns/compatibility/datatypes/1.0">
  <element name="bar">
    <attribute name="id">
      <data type="ID"/>
    </attribute>
  </element>
  <zeroOrMore>
    <element name="bar">
      <attribute name="id">
        <data type="token" datatypeLibrary=""/>
      </attribute>
    </element>
  </zeroOrMore>
</element>
